Pfenex (PFNX) Short Interest Ratio & Short Volume

Short interest is the volume of Pfenex shares that have been sold short but have not yet been covered or closed out. As of September 15th, traders have sold 539,000 shares of PFNX short. Learn More on Pfenex's current short interest.

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. PFNX shares currently have a short interest ratio of 1.0. Learn More on Pfenex's short interest ratio.

Pfenex saw a decline in short interest in September. As of September 15th, there was short interest totaling 539,000 shares, a decline of 8.7% from the previous total of 590,100 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Pfenex: ARS Pharmaceuticals, Inc. (28.42%), Apogee Therapeutics Inc. (23.20%), Tarsus Pharmaceuticals, Inc. (23.17%), Adaptive Biotechnologies Corporation (7.12%), Janux Therapeutics, Inc. (20.71%), 89BIO (11.13%), Schrodinger, Inc. (16.64%), Evotec AG (0.21%), Vera Therapeutics, Inc. (0.23%), Travere Therapeutics, Inc. (0.00%),

As of the most recent reporting period, the following stocks had the largest short interest positions: Charter Communications, Inc. ($5.24 billion), Aon plc ($3.67 billion), The Clorox Company ($2.89 billion), The Charles Schwab Corporation ($2.79 billion), MercadoLibre, Inc. ($2.26 billion), Analog Devices, Inc. ($2.19 billion), Simon Property Group, Inc. ($2.01 billion), The Kroger Co. ($1.94 billion), Moderna, Inc. ($1.89 billion), and International Flavors & Fragrances Inc. ($1.81 billion). View all of the most shorted stocks.

Short selling PFNX is an investing strategy that aims to generate trading profit from Pfenex as its price is falling. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for Pfenex occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of PFNX, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including PFNX, twice per month. The most recent reporting period available is September, 15 2020.